From 18861cd7aa87f62d5620a9a3135d4fa93601b161 Mon Sep 17 00:00:00 2001
From: oliexdev <olie.xdev@googlemail.com>
Date: Sun, 17 Nov 2024 10:57:02 +0100
Subject: [PATCH 1/4] updated to the latest libraries version

---
 android_app/app/build.gradle  | 26 +++++++++++++++-----------
 android_app/build.gradle      |  4 ++--
 android_app/gradle.properties |  1 -
 3 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/android_app/app/build.gradle b/android_app/app/build.gradle
index 7def6d20..b1f97f0b 100644
--- a/android_app/app/build.gradle
+++ b/android_app/app/build.gradle
@@ -22,6 +22,10 @@ android {
             }
         }
 
+        buildFeatures {
+            buildConfig = true
+        }
+
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     sourceSets {
@@ -138,18 +142,18 @@ android {
 }
 
 dependencies {
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.4'
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.3'
 
     implementation 'com.google.android.material:material:1.12.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'androidx.appcompat:appcompat:1.7.0'
     implementation 'androidx.recyclerview:recyclerview:1.3.2'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'androidx.constraintlayout:constraintlayout:2.2.0'
     implementation 'androidx.preference:preference:1.2.1'
-    implementation 'androidx.navigation:navigation-fragment:2.7.7'
-    implementation 'androidx.navigation:navigation-ui:2.7.7'
+    implementation 'androidx.navigation:navigation-fragment:2.8.4'
+    implementation 'androidx.navigation:navigation-ui:2.8.4'
     implementation "android.arch.lifecycle:extensions:1.1.1"
-    annotationProcessor "androidx.lifecycle:lifecycle-common-java8:2.8.0"
+    annotationProcessor "androidx.lifecycle:lifecycle-common-java8:2.8.7"
 
     // MPAndroidChart
     implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
@@ -171,11 +175,11 @@ dependencies {
     // Local unit tests
     testImplementation 'junit:junit:4.13.2'
     // Instrumented unit tests
-    implementation 'androidx.annotation:annotation:1.8.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
-    androidTestImplementation 'androidx.test:rules:1.5.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.5.1'
+    implementation 'androidx.annotation:annotation:1.9.1'
+    androidTestImplementation 'androidx.test.ext:junit:1.2.1'
+    androidTestImplementation 'androidx.test:rules:1.6.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.6.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.6.1'
 }
 
 tasks.withType(Test) {
diff --git a/android_app/build.gradle b/android_app/build.gradle
index 53794076..b2e93c7b 100644
--- a/android_app/build.gradle
+++ b/android_app/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.4.0'
-        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.7.7"
+        classpath 'com.android.tools.build:gradle:8.4.2'
+        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.8.4"
     }
 }
 
diff --git a/android_app/gradle.properties b/android_app/gradle.properties
index 98241225..2f4f8ad1 100644
--- a/android_app/gradle.properties
+++ b/android_app/gradle.properties
@@ -1,4 +1,3 @@
-android.defaults.buildfeatures.buildconfig=true
 android.enableJetifier=true
 android.nonFinalResIds=false
 android.nonTransitiveRClass=false

From 8b4326687c91d33f496a0f37dc5fc7e14388aca9 Mon Sep 17 00:00:00 2001
From: oliexdev <olie.xdev@googlemail.com>
Date: Sun, 17 Nov 2024 12:30:03 +0100
Subject: [PATCH 2/4] fixed color button issues, see bug #1038

---
 .../app/src/main/res/values-night/themes.xml  | 28 +++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/android_app/app/src/main/res/values-night/themes.xml b/android_app/app/src/main/res/values-night/themes.xml
index a988d38a..a7119d6e 100644
--- a/android_app/app/src/main/res/values-night/themes.xml
+++ b/android_app/app/src/main/res/values-night/themes.xml
@@ -27,7 +27,10 @@
         <item name="colorOnSurfaceInverse">@color/md_theme_dark_inverseOnSurface</item>
         <item name="colorSurfaceInverse">@color/md_theme_dark_inverseSurface</item>
         <item name="colorPrimaryInverse">@color/md_theme_dark_inversePrimary</item>
-        <item name="alertDialogTheme">@style/AppTheme.Dialog</item>
+        <item name="android:alertDialogTheme">@style/AppTheme.Dialog</item> <!-- for material 3 dialog button color -->
+        <item name="alertDialogTheme">@style/AppTheme.Dialog</item> <!-- for preference dialog button color -->
+        <item name="materialCalendarTheme">@style/MaterialCalendarTheme</item> <!-- for material calendar button color -->
+        <item name="preferenceTheme">@style/MaterialPreferenceTheme</item>
         <item name="colorAccent">@color/md_theme_dark_onPrimary</item>
     </style>
 
@@ -35,8 +38,29 @@
         <item name="colorSecondaryContainer">@android:color/transparent</item>
     </style>
 
-    <style name="AppTheme.Dialog" parent="Theme.MaterialComponents.DayNight.Dialog">
+    <style name="MaterialPreferenceTheme" parent="PreferenceThemeOverlay">
+        <item name="buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
+        <item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
+    </style>
+
+    <style name="MaterialCalendarTheme" parent="ThemeOverlay.MaterialComponents.MaterialCalendar">
+        <item name="buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
+        <item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
+    </style>
+
+    <style name="AppTheme.Dialog" parent="ThemeOverlay.Material3.Dialog">
         <item name="colorPrimary">@color/md_theme_dark_onBackground</item>
+        <item name="android:buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
+        <item name="android:buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
+        <item name="android:buttonBarNeutralButtonStyle">@style/PositiveButtonStyle</item>
+    </style>
+
+    <style name="NegativeButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
+        <item name="android:textColor">@color/md_theme_dark_onBackground</item>
+    </style>
+
+    <style name="PositiveButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
+        <item name="android:textColor">@color/md_theme_dark_onBackground</item>
     </style>
 
     <style name="AppTheme.RadioButton" parent="Widget.Material3.CompoundButton.RadioButton">

From 8c36ee47ad948448d935bdba38249ec9339ec3b7 Mon Sep 17 00:00:00 2001
From: oliexdev <olie.xdev@googlemail.com>
Date: Sun, 17 Nov 2024 12:52:03 +0100
Subject: [PATCH 3/4] fixed bug to show application details settings, see #1076

---
 .../health/openscale/gui/preferences/ReminderPreferences.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/android_app/app/src/main/java/com/health/openscale/gui/preferences/ReminderPreferences.java b/android_app/app/src/main/java/com/health/openscale/gui/preferences/ReminderPreferences.java
index 42be6729..714b22da 100644
--- a/android_app/app/src/main/java/com/health/openscale/gui/preferences/ReminderPreferences.java
+++ b/android_app/app/src/main/java/com/health/openscale/gui/preferences/ReminderPreferences.java
@@ -22,6 +22,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
@@ -185,7 +186,7 @@ public class ReminderPreferences extends PreferenceFragmentCompat
                             builder.setMessage(R.string.permission_notification_info);
                             builder.setPositiveButton(R.string.label_ok, new DialogInterface.OnClickListener() {
                                 public void onClick(DialogInterface dialogInterface, int i) {
-                                    Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+                                    Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.parse("package:" + getContext().getPackageName()));
                                     getContext().startActivity(intent);
                                 }
                             });

From 868b81797d50a6def4af67a2712e4f509562defe Mon Sep 17 00:00:00 2001
From: Diogo Correia <me@diogotc.com>
Date: Sun, 17 Nov 2024 13:43:15 +0100
Subject: [PATCH 4/4] Support for ES-26BB-B (#901)

* Initial support for ES-26BB-B (read weight)

This commit only adds support to read weight (in kg), it can't
figure out body fat or other measurements yet.

* Add packet checksum validation

* Completely reverse engineer the bluetooth protocol

* Parse, store and acknowledge offline measurements

---------

Co-authored-by: OliE <olie.xdev@googlemail.com>
---
 .../core/bluetooth/BluetoothES26BBB.java      | 246 ++++++++++++++++++
 .../core/bluetooth/BluetoothFactory.java      |   5 +-
 2 files changed, 250 insertions(+), 1 deletion(-)
 create mode 100644 android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothES26BBB.java

diff --git a/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothES26BBB.java b/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothES26BBB.java
new file mode 100644
index 00000000..66d25f95
--- /dev/null
+++ b/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothES26BBB.java
@@ -0,0 +1,246 @@
+package com.health.openscale.core.bluetooth;
+
+import android.content.Context;
+
+import com.health.openscale.core.OpenScale;
+import com.health.openscale.core.datatypes.ScaleMeasurement;
+import com.health.openscale.core.datatypes.ScaleUser;
+import com.health.openscale.core.utils.Converters;
+
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Date;
+import java.util.UUID;
+
+import timber.log.Timber;
+
+public class BluetoothES26BBB extends BluetoothCommunication {
+
+    private static final UUID WEIGHT_MEASUREMENT_SERVICE = BluetoothGattUuid.fromShortCode(0x1a10);
+
+    /**
+     * Notify
+     */
+    private static final UUID NOTIFY_MEASUREMENT_CHARACTERISTIC = BluetoothGattUuid.fromShortCode(0x2a10);
+    /**
+     * Write
+     */
+    private static final UUID WRITE_MEASUREMENT_CHARACTERISTIC = BluetoothGattUuid.fromShortCode(0x2a11);
+
+    public BluetoothES26BBB(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String driverName() {
+        // TODO idk what to put here
+        return "RENPHO ES-26BB-B";
+    }
+
+    @Override
+    protected boolean onNextStep(int stepNr) {
+        Timber.i("onNextStep(%d)", stepNr);
+
+        switch (stepNr) {
+            case 0:
+                // set notification on for custom characteristic 1 (weight, time, and others)
+                setNotificationOn(WEIGHT_MEASUREMENT_SERVICE, NOTIFY_MEASUREMENT_CHARACTERISTIC);
+                break;
+            case 1:
+                // TODO investigate what these mean
+                byte[] ffe3magicBytes = new byte[]{(byte) 0x55, (byte) 0xaa, (byte) 0x90, (byte) 0x00, (byte) 0x04, (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x94};
+                writeBytes(WEIGHT_MEASUREMENT_SERVICE, WRITE_MEASUREMENT_CHARACTERISTIC, ffe3magicBytes);
+                break;
+            default:
+                return false;
+        }
+        return true;
+    }
+
+    @Override
+    public void onBluetoothNotify(UUID characteristic, byte[] value) {
+        if (characteristic.equals(NOTIFY_MEASUREMENT_CHARACTERISTIC)) {
+            parseNotifyPacket(value);
+        }
+    }
+
+    /**
+     * Parse a packet sent by the scale, through characteristic NOTIFY_MEASUREMENT_CHARACTERISTIC.
+     *
+     * @param data The data payload (in bytes)
+     */
+    private void parseNotifyPacket(byte[] data) {
+        String dataStr = byteInHex(data);
+        Timber.d("Received measurement packet: %s", dataStr);
+
+        if (!isChecksumValid(data)) {
+            Timber.w("Checksum of packet did not match. Ignoring measurement. Packet: %s", dataStr);
+            return;
+        }
+
+        // Bytes 0, 1, 3 and 4 seem to be ignored by the original implementation
+
+        byte action = data[2];
+        switch (action) {
+            case 0x14:
+                handleMeasurementPayload(data);
+                break;
+            case 0x11:
+                // TODO this seems to be sent at the start and at the end of the measurement (?)
+                // This sends scale information, such as power status, unit, precision, offline count and battery
+                byte powerStatus = data[5];
+                byte unit = data[6];
+                byte precision = data[7];
+                byte offlineCount = data[8];
+                byte battery = data[9];
+
+                Timber.d(
+                        "Received scale information. Power status: %d, Unit: %d, Precision: %d, Offline count: %d, Battery: %d",
+                        powerStatus, // 1: turned on; 0: shutting down
+                        unit, // 1: kg
+                        precision, // seems to be 1, not sure when it would not be
+                        offlineCount, // how many offline measurements stored, I think we can ignore
+                        battery // seems to be 0, not sure what would happen when battery is low
+                );
+                // TODO
+
+                break;
+            case 0x15:
+                // This is offline data (one packet per measurement)
+                handleOfflineMeasurementPayload(data);
+                break;
+            case 0x10:
+                // This is callback for some action I can't figure out
+                // Original implementation only prints stuff to log, doesn't do anything else
+                byte success = data[5];
+                if (success == 1) {
+                    Timber.d("Received success for operation");
+                } else {
+                    Timber.d("Received failure for operation");
+                }
+            default:
+                Timber.w("Unknown action sent from scale: %x. Full packet: %s", action, dataStr);
+                break;
+        }
+    }
+
+    /**
+     * The last byte of the payload is a checksum.
+     * It is calculated by summing all the other bytes and AND'ing it with 255 (that is, truncate to byte).
+     *
+     * @param data The payload to check, where the last byte is the checksum
+     * @return True if the checksum matches, false otherwise
+     */
+    private boolean isChecksumValid(byte[] data) {
+        if (data.length == 0) {
+            Timber.d("Could not validate checksum because payload is empty");
+            return false;
+        }
+
+        byte checksum = data[data.length - 1];
+        byte sum = sumChecksum(data, 0, data.length - 1);
+        Timber.d("Comparing checksum (%x == %x)", sum, checksum);
+        return sum == checksum;
+    }
+
+    /**
+     * Handle a packet of type "measurement" (0x15).
+     * Offline measurements always have resistance (it wouldn't make sense to store weight-only
+     * measurements since people can just look at the scale).
+     * <p>
+     * This will create and save a measurement.
+     *
+     * @param data The data payload (in bytes)
+     */
+    private void handleMeasurementPayload(byte[] data) {
+        Timber.d("Parsing measurement");
+
+        // 0x01 and 0x11 are final measurements, 0x00 and 0x10 are real-time measurements
+        byte measurementType = data[5];
+
+        if (measurementType != 0x01 && measurementType != 0x11) {
+            // This byte indicates whether the measurement is final or not
+            // Discard if it isn't, we only want the final value
+            Timber.d("Discarded measurement since it is not final");
+            return;
+        }
+
+        Timber.d("Saving measurement");
+        // Weight (in kg) is stored as big-endian in bytes 6 to 9
+        long weightKg = Converters.fromUnsignedInt32Be(data, 6);
+        // Resistance/Impedance is stored as big-endian in bytes 10 to 11
+        int resistance = Converters.fromUnsignedInt16Be(data, 10);
+
+        Timber.d("Got measurement from scale. Weight: %d, Resistance: %d", weightKg, resistance);
+
+        // FIXME weight might be in other units, investigate
+
+        saveMeasurement(weightKg, resistance, null);
+    }
+
+    /**
+     * Handle a packet of type "ofline measurement" (0x14).
+     * There are two types: real time (0x00/0x10) or final (0x01/0x11), indicated by byte 5.
+     * Real time measurements only have weight, whereas final measurements can also have resistance.
+     * <p>
+     * This will create and save a measurement if it is final, discarding real time measurements.
+     *
+     * @param data The data payload (in bytes)
+     */
+    private void handleOfflineMeasurementPayload(byte[] data) {
+        Timber.d("Parsing offline measurement");
+
+        // Weight (in kg) is stored as big-endian in bytes 5 to 8
+        long weightKg = Converters.fromUnsignedInt32Be(data, 5);
+        // Resistance/Impedance is stored as big-endian in bytes 9 to 10
+        int resistance = Converters.fromUnsignedInt16Be(data, 9);
+        // Scale returns the seconds elapsed since the measurement as big-endian in bytes 11 to 14
+        long secondsSinceMeasurement = Converters.fromUnsignedInt32Be(data, 11);
+        long measurementTimestamp = System.currentTimeMillis() - secondsSinceMeasurement * 1000;
+
+        Timber.d("Got offline measurement from scale. Weight: %d, Resistance: %d, Timestamp: %tc", weightKg, resistance, measurementTimestamp);
+
+        saveMeasurement(weightKg, resistance, measurementTimestamp);
+
+        acknowledgeOfflineMeasurement();
+    }
+
+    /**
+     * Send acknowledge to the scale that we received one offline measurement payload,
+     * so that it can delete it from memory.
+     * <p>
+     * For each offline measurement, we have to send one of these.
+     */
+    private void acknowledgeOfflineMeasurement() {
+        final byte[] payload = {(byte) 0x55, (byte) 0xAA, (byte) 0x95, (byte) 0x0, (byte) 0x1, (byte) 0x1, 0};
+        payload[payload.length - 1] = sumChecksum(payload, 0, payload.length - 1);
+        writeBytes(WEIGHT_MEASUREMENT_SERVICE, WRITE_MEASUREMENT_CHARACTERISTIC, payload);
+        Timber.d("Acknowledge offline measurement");
+    }
+
+    /**
+     * Save a measurement from the scale to openScale.
+     *
+     * @param weightKg   The weight, in kilograms, multiplied by 100 (that is, as an integer)
+     * @param resistance The resistance (impedance) given by the scale. Can be zero if not barefoot
+     * @param timestamp  For offline measurements, provide the timestamp. If null, the current timestamp will be used
+     */
+    private void saveMeasurement(long weightKg, int resistance, @Nullable Long timestamp) {
+
+        final ScaleUser scaleUser = OpenScale.getInstance().getSelectedScaleUser();
+
+        Timber.d("Saving measurement for scale user %s", scaleUser);
+
+        final ScaleMeasurement btScaleMeasurement = new ScaleMeasurement();
+        btScaleMeasurement.setWeight(weightKg / 100f);
+        if (resistance != 0) {
+            // TODO add more measurements
+            // This will require us to revert engineer libnative-lib.so
+        }
+        if (timestamp != null) {
+            btScaleMeasurement.setDateTime(new Date(timestamp));
+        }
+
+        addScaleMeasurement(btScaleMeasurement);
+    }
+}
diff --git a/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothFactory.java b/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothFactory.java
index 1cee9735..4cb92d1a 100644
--- a/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothFactory.java
+++ b/android_app/app/src/main/java/com/health/openscale/core/bluetooth/BluetoothFactory.java
@@ -114,7 +114,7 @@ public class BluetoothFactory {
         }
         if (deviceName.equals("Hoffen BS-8107")) {
             return new BluetoothHoffenBBS8107(context);
-	}
+	      }
         if (deviceName.equals("ADV") || deviceName.equals("Chipsea-BLE")) {
             return new BluetoothOKOK(context);
         }
@@ -136,6 +136,9 @@ public class BluetoothFactory {
         if (deviceName.equals("CH100")){
             return new BluetoothHuaweiAH100(context);
         }
+        if (deviceName.equals("ES-26BB-B")){
+            return new BluetoothES26BBB(context);
+        }
         if (deviceName.equals("Yoda1")){
             return new BluetoothYoda1Scale(context);
         }